Calendar Girl is adapted from the short play 'The Calendar Girl Killer,' by playwright Faith Brody.
'The Calendar Girl Killer,' a short play which Calendar Girl is based on, was first performed at the Black Box Theater in Philadelphia.
Calendar Girl was directed and produced by filmmaker Jason Hall as his thesis project at Drexel University in Philadelphia.
The feature Miss December (2011) is based on this short film. Director Jason Hall did not sanction or want to make it into a feature. The writer Faith Brody is making the film without his participation.